The ALICE Transition Radiation Detector : Construction, operation, and performance
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Acharya , S , Brucken , E J , Chang , B , Kim , D J , Litichevskyi , V , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Snellman , T W , Trzaska , W H , Viinikainen , J & The ALICE Collaboration 2018 , ' The ALICE Transition Radiation Detector : Construction, operation, and performance ' , Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment , vol. 881 , pp. 88-127 . https://doi.org/10.1016/j.nima.2017.09.028
| Title: | The ALICE Transition Radiation Detector : Construction, operation, and performance |
| Author: | Acharya, S.; Brucken, E. J.; Chang, B.; Kim, D. J.; Litichevskyi, V.; Mieskolainen, M. M.; Orava, R.; Rak, J.; Räsänen, S. S.; Snellman, T. W.; Trzaska, W. H.; Viinikainen, J.; The ALICE collaboration |
| Contributor: | University of Helsinki, Helsinki Institute of Physics University of Helsinki, University of Jyväskylä University of Helsinki, University of Jyväskylä University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, Helsinki Institute of Physics University of Helsinki, University of Jyväskylä University of Helsinki, Helsinki Institute of Physics University of Helsinki, University of Jyväskylä University of Helsinki, University of Jyväskylä University of Helsinki, University of Jyväskylä |
| Date: | 2018-02-11 |
| Number of pages: | 40 |
| Belongs to series: | Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment |
| ISSN: | 0168-9002 |
| URI: | http://hdl.handle.net/10138/231337 |
| Abstract: | The Transition Radiation Detector (TRD) was designed and built to enhance the capabilities of the ALICE detector at the Large Hadron Collider (LHC). While aimed at providing electron identification and triggering, the TRD also contributes significantly to the track reconstruction and calibration in the central barrel of ALICE. In this paper the design, construction, operation, and performance of this detector are discussed. A pion rejection factor of up to 410 is achieved at a momentum of 1 GeV/c in p-Pb collisions and the resolution at high transverse momentum improves by about 40% when including the TRD information in track reconstruction. The triggering capability is demonstrated both for jet, light nuclei, and electron selection. (c) 2017 CERN for the benefit of the Authors. Published by Elsevier B.V. |
| Subject: |
Transition radiation detector
Multi-wire proportional drift chamber Fibre/foam sandwich radiator Xenon-based gas mixture Tracking Ionisation energy loss dE/dx TR Electron-pion identification Neural network Trigger COLLIDING BEAM EXPERIMENT ELECTRON IDENTIFICATION DRIFT CHAMBERS TRD PROTOTYPES ENERGY-LOSS GEV/C COLLISIONS PIONS 114 Physical sciences |
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